Sh2-275 - Rosette Nebula in RGB only - Hα Addition - First Light Williams Optics FLT 132 (Uwe Deutermann)

Sh2-275 - Rosette Nebula in RGB only - Hα Addition - First Light Williams Optics FLT 132

This was a very short test to see if the focal distance was correctly chosen, which I believe it was when I look at the corners. Was of course first confused which one to take, WO has very detailed information about the Flattener/Reducer, so add this distance to the 6.5 mm of the ASI1600, which was of course incorrect. So I arranged it at the WO specified distance, git my OAG, Baader Filter drawer AND the ZWO filter wheel right in front of the camera (needed quiet some arrangements 😊) and voila, almost to the point.

I used only the obtained RGB data for processing, I am still fighting how to use the Lum data in a best way.

Likes about the new scope and setup:

- The stars are just wonderful with this telescope.

- RGB images finally, in a Zone 6 this was better than expected.

- The guiding: maybe it is the scope or the setup, but the guiding was extraordinarily good that night.

Dislikes:

- I will need to get the auto focuser, it is ordered but it takes time right now. Focusing manually the 3 RGB filters is taking (for me at least) too much time.

E

Description: The cleaner version ... not pushing the stretch as much.

Uploaded: ...

F

Description: And here it is, looks awesome too 😊. The Williams Optics red with the Bisque red matches perfectly. The fun keeps on going!

Uploaded: ...

H

Description: Example raw image, 60 seconds, R channel.

Uploaded: ...

I

Description: And an even closer look ...

Uploaded: ...

J

Description: Added Hα images (32x600s = 5.33 hours) to the RGB, cropped, played around with gif-animation, always liked the Equinoxx sequences. Have to smoothen out a bit, but already pretty good.

Uploaded: ...

ZWO ASI1600MM/QHY163M
AstroBin Platform open discussions community forum
Florida / Georgia Imagers
Suburban Astrophotography
PixInsight Addicts
Sharpless2 Objects

	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	4157739
PixInsight job	NXX7RQWKGJQ7YWETAPVY7XAIZGZGJ7Z3
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h31m49s.186
RA (top/left)	06h33m45s.637
RA (top/right)	06h29m26s.949
RA (bottom/right)	06h29m52s.849
RA (bottom/left)	06h34m11s.285

Dec (center)	+05°02′43″.98
Dec (top/left)	+05°30′56″.26
Dec (top/right)	+05°22′16″.28
Dec (bottom/right)	+04°34′29″.99
Dec (bottom/left)	+04°43′09″.20

Image Index:

Contribution Index (beta):